*{
	margin: 0;
	padding: 0;
	box-sizing:border-box;
}
body{
	display: flex;
	align-items: center;
	justify-content: center;
	height: 100vh;
}
.container{
	width:352px;
	margin: auto;
}
h2{
	text-align: center;
	margin: 20px;
}
.date,
.week{
	display: flex;
	flex-wrap: wrap;
	border:1px solid #999;
}
.date span,
.week span
{
	width:50px;
	height:50px;
	line-height:50px;
	text-align: center;
	box-shadow:1px 1px 1px rgba(0,0,0,0.3);
}
.c{
	color: #999999;
}
.b{
	background-color:aquamarine;
	color:aliceblue;
}